A male body was found in front of a piece of equipment at a construction site near West Cortland and North Kingsbury streets, police said.
Chopper 7HD flew over the scene as police investigated.
General Iron Industries, Inc., released a statement Monday that said the deceased was not an employee:
"The individual found deceased this morning by our security personnel was not an employee or anyone authorized to be at that location on our property. We are fully cooperating with Chicago Police in their investigation and we defer to them to provide any further information. We extend our condolences to the individual's family."
Authorities have not released the identity of the body or the cause of death.
The investigation is ongoing.